Features :5x magnification scope with 30mm FTS flip to side mount.Has a built in focus ringWorks well with many red dot scopes.Fits on 20mm Weaver/Picatinny Rail.Durable aluminum waterproof constructionIncludedMagnifier scope300mm fts mountallen wrench for mounting magnifierallen wrench for windage and elevation adjustments.The center of the optic is 1.75 inches (4.5 cm), above the rail.